package Day08;

public class DemoStringBuilder2 {
    public static void main(String[] args) {
        StringBuilder s=new StringBuilder();
        s.append(520);
        System.out.println(s);
        String s1=s.toString();
        System.out.println(s1);
        String a="hello";
        StringBuilder a1=new StringBuilder(a);
        System.out.println(a1);
    }
}
